Thursday, 30 March 2023

Cancer Research in the Context of Organoid Biology

 One of the  goals of biology research is to simulate the native architecture of tissues, so that one can study cells in their "natural environments".

A step towards this goal is the development of organoid systems.

Organoid systems are the cultures of stem cells in a three-dimensional environment, i.e. a matrigel, which develop over time in the presence of requisite growth factors into tissue-like structures. 

Self-organization into tissue-like structures, is a crowning achievement of invitro cell biology. What remains to be included is the vasculature, which can be incorporated by mixing the matrigel and microfluidics systems, with various technological approaches.

In the cancer context the stem cells, maybe replaced by cancer stem cells (patient derived/cell line derived) for primary tumors and circulating tumor cells for metastatic cancer.

The above system, may then be utilized for testing anti-cancer compounds, or even used to determine cancer related signatures in their native microenvironments. This information may inform the development of therapeutic cancer vaccines, which can be applied to patients with early diagnosis (depending on the stage), to prevent full blown development to metastastic cancer  which is fatal.


Ref:https://pubmed.ncbi.nlm.nih.gov/31550983/


Saturday, 23 July 2022

what is life ? what is living ?

 What is Life ? contrasted with what is Living ? 

Life from the perspective of atoms is the progressive re-arrangement of atoms into "higher-order" structures with an increase in entropy that transforms energy into useful work, which results in metabolism, growth, and reproduction. Cells are an example of living objects.

Living is a "lived experience." 

Does 'ALL LIFE' possess lived experience, in other words, do all living objects "EXPERIENCE?"

Do individual cells experience? does a crystal experience? does DNA experience? 

However, as a human organism, I experience, and I know a cat is living when I see it, but do I know whether a cat experiences? I assume a cat enjoys the experience of drinking milk when I see it, but do I as a human being know that for sure? 

What is the difference between "I know it when I see it" to truly understanding the process? The first is a subjective experience that is intuited, the latter is an objective rational understanding of the process when I divide the entire experience into "I the observer", observing the cat drinking milk. 

Am I truly able to understand in third-person perspective or phenomenology, or is phenomenology a descriptor and first-person understanding or noumenology is true understanding via subjective intuition? 

The basis of "phenomenology" is the mind/active (dynamic) energy field/biological awareness/consciousness that analyses and breaks down a process into parts to understand it. It does not include the observer.

 The basis of "noumenology", is "Pure Awareness/Consciousness that is the inert/still energy field underlying all physical and mental universes, called "Brahman" in Advaita (Non-Dual) Vedanta. Shakti i.e. dynamic energy is akin to the power of fire (Brahman) to burn. The inert/still energy field illuminates existence itself via the power of awareness.  


ref: can life really be explained by physics? 

https://www.youtube.com/watch?v=k-vm3ZWnMWk&t=24s     




Thursday, 7 July 2022

cellular expression code: cec

 The concentration of RNA and proteins within a cell determines its conformation.

The levels of RNA/protein are like the crests and troughs of a wave, fluctuating high and low concentrations encoding an expression code of RNA/protein. 

There is an optimal expression code within a regularly dividing cell.

In a cancer cell,  this expression code is altered due to deregulatory epigenetic mechanisms, leading to aberrant expression of oncogenes and tumor suppressors, projecting as a tumor-initiating cell.





Tuesday, 17 May 2022

Manifestation of Unity

 The manifestation of Unity (Wave function/Universal Energy Field) as multiplicity (Particles) in the double-slit experiment.


Fractals may be the mechanism via which Brahman/Universal energy field experiences the universe as Multiplicity via various minds (mind here is biological consciousness/thought emerging from the brain and is speculated to have a fractal structure or fractal function).

 Fractals are separated in time and space by Markov Blankets, which are most probably higher-order fractals. This occurs for energy-efficient propagation of information so that darker areas of destructive interference of waves are separated from lighter areas of constructive interference of waves resulting in particles as observed in the quantum double-slit experiment.




Friday, 6 May 2022

Cancer_Hypothesis

 Hypothesis of Cancer:

1.Probably the epigenome of a cell is modified by an oncogenic mutation. Phenotypic plasticity/tumor heterogeneity occurs in this process.

2. This modified epigenome overrides the inhibitory signaling of tumor microenvironment. Chaos ensues.

3. The above (2) breaks cell cell interactions leading to tumor cells release from primary site and spread i.e. invasion.

4. Altered epigenome leads to epithelial mesenchymal transition.

5. Tumor cells at secondary site  undergo mesenchymal epithelial transition due to restored epigenome in a new microenvironment.

6. As critical threshlod of oncogenic protein/signaling activity is breached (1) happens again.

7. A vicious cycle of tumor growth and spread ensues.

8. Altered expression/phenotype of tumor cells  containing oncogenic mutation occurs via phase transition.

9. The unpredictable component is how the epigenome is altered from a normal one to a cancerous one via the  oncogenic mutation.


The analogy with an Enzymatic Reaction:

Initiator-Oncogenic mutation, Epigenome alteration/Ist hit

Catalyst-Altered Tumor Microenvironment /2nd hit


Reactants-Normal cell


Product/s-Tumor cell

Saturday, 30 April 2022

Targeting the Epigenetic Profile of tumor-initiating stem cells

 IDEA for a Cancer  Vaccine:


Can Tissue-Specific, Conserved Epigenetic Signatures, of Tumor Initiating/metastasizing Stem Cells serve as targets for developing an Anti-Cancer Vaccine? 

Friday, 18 March 2022

Experience and Self

During an experience of the world, a mental model of the "world" is constructed.

This mental model is occurring "within" the ambit of, Self-Awareness. 

Self-Awareness is the enabler or illumines this experience. 

The experience of the world is the constructed mental model, upon the substratum of, Self-Awareness.